How to do Rifle Open Carry Right

The New York Times reports on a rifle open carry event in San Antonio, Texas.
As I’ve said before, I’m not so keen on rifle open carry, but this seemed to be pretty reasonable: it was an organized, coordinated event (not just random guys showing up at a coffee shop), they’re using rifle open carry as a means to an end (in Texas, open carry of a long gun is legal but open carry of a handgun is not — they’re looking to change the law regarding handguns), people are well-dressed, polite, and not being idiots.
Well done.